RFC-2119
Key words for use in RFCs to Indicate Requirement Levels
Defines the precise meaning of MUST, SHALL, SHOULD, MAY, and their negatives when used in standards and specifications. The de facto convention for requirement language across all engineering domains.
- Document
- RFC 2119 (1997)
- URL
- https://www.rfc-editor.org/rfc/rfc2119
- Label
- Standard
- Keywords
- requirement levels MUST SHALL SHOULD MAY normative language RFC keywords
Domain: Software Engineering · Standard